On Ebay I noticed a seller was asking $2250 for a 1953 South Korean postal card (see Figures 1-2). I did not understand why it was so rare and want to put the question to the readers of the Korea Stamp Society website if anyone knows why it is so rare?
I knew this postal card was issued in 1953 and it was unusual as it was issued only with the Scott listed deep blue 189A affixed to the card. The Korean Postage Stamp Catalogue (KPSC) lists it as R46A. This is the only 500 won stamp with the turtle tombstone with the deep blue colour, so it is easy to recognize.